We specialize in the manufacturing of high-quality screws, including self-tapping screws, self-drilling screws, and machine screws. Our advanced production process ensures precision, strength, and reliability.

• Cold heading & precision forming
• Thread rolling & tapping technology
• Drill point forming (self-drilling screws)
• Heat treatment & surface coating

What Is Screw Manufacturing?

Screw manufacturing involves forging metal raw materials (such as wire and bar stock) into threaded fasteners (screws). The process includes cold heading, thread rolling, heat treatment, and surface treatment.

Unlike bolts, screws often include specialized features such as:

• Sharp or drill-point tips
• Self-tapping threads
• Precision heads and drive types

How Are Screws Manufactured?

Step 1: Raw Material Selection

• Carbon Steel, Stainless Steel, Aluminum, Titanium, Alloy Steel, Brass, Nickel Alloys.

Step 2: Cold Heading Process

High production efficiency Strong grain structure Minimal material waste.

Head type (pan head, hex head, countersunk, etc.); Drive type (Phillips, Torx, hex socket, etc.).

Step 3: Thread Rolling

• Thread Turning, Thread Milling, Thread Grinding, Thread Rolling.

Step 4: Point Forming & Drill Point Forming

• The tip is shaped into a sharp point.
• A drill-like tip is created.

Step 5: Heat Treatment

For high-strength bolts such as ASTM A325 and A490, heat treatment is essential.

• Quenching and tempering to improve tensile strength, hardness, and wear resistance.

Step 6: Surface Treatment

• Eco-friendly Dacromet, Anodizing, Hot-dip galvanizing, Yellow zinc, Black zinc, Blue-white zinc
• Colored zinc, Teflon, Nickel plating, Chrome plating, Phosphating.

Step 6: Inspection & Packaging

• Thread accuracy inspection
• Hardness testing
• Torque testing
• Salt spray testing

Our Screw Manufacturing Capabilities

Equipment

• Multi-station cold heading machines
• Thread rolling machines
• Pinch pointing machines
• Heat treatment furnaces

Production Capacity

• Sizes: M2 – M12
• High-volume production
• Fast delivery capability

Customization

We support:

• Custom head types
• Special thread designs
• OEM screw production

Screw Types We Manufacture